Ore-jigger



(No Model.) I '4 Sheets-Sheet 1. B. F. GRUZAN & J. J. ROBINSON.

ORE JIGGBR. No. 302,545. Patented July 29, 1884.

(No Model.) 4 Sheets-Sheet 2. B. F. GRUZAN & J. J. ROBINSON. ORE JIGGBR.No. 302,545. Patented July 29, 1884.

InvenZ-or-f 4 Sheets-Sheet 3.

(No Model.)

B. P. CRUZAN & .J. J. ROBINSON.

ORE JIGGER.

No. 302,545. Patented July 29, 1884.

(No Model.) Q 4Sheets-Sheet 4.

B. P. GRUZAN 86 J. J. ROBIN$ON.

ORE JIGGER. No. 302,545. Patented July 29, 1884.

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- l W M N. PETERS. PhdtwLilhogrnphen Wnhinpoa. D C.

PATENT OFFICE.

BENJAMIN F. ORUZAN AND JOHN J. ROBINSON, OF \VEBB CITY, MISSOURI.

ORE-JIGGER.

SPECIFICATION forming part of Letters Patent No. 302.545, dated July 29,1884. Application filed March 4, 1884. (No model.)

To all} whom it may concern:

Be it known that we, BENJAMIN F. CRUZAN and JOHN J. ROBINSON, citizensof the United States, residing at Webb City, in the county of Jasper andState of Missouri, have invented certain new and useful Improvements .inOre- J iggers; and we do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to the letters and figuresof reference marked thereon, which form a part of this specification.

This invention relates to improvements in machines for cleaning andseparating ores, and its object is to give increased efficiency to theplunging-sieve, by which the cleaning and separating are accomplished inmachines of the class to which the invention pertains.

The mechanism now to be described and claimed consists of a water-tankin one corner of which is a plunging-sieve, the sieve being divided bypartitions to facilitate control and separation of the contentsaccording to the weight of the respective lumps and particles of ore.

In the accompanying drawings,wl1erein like letters represent like parts,Figure l is a perspective of the tank and its attachments, taken fromthe left side, near the upper end, and with the side broken away to showthe interior, Fig. 2, a plan view from the top of the machine; Fig. 3, aperspective from the lower end, with the end wall of the tank partlybroken away; Fig. 4,, a longitudinal section view through a linecorresponding to the middle of the sieve; and Fig. 5, a top section viewof the off side wall of the sieve, showing the half-circular guardsabout the dischargel1oles.-

A is an oblong tank,mounted upon four legs, Within this tank, at one endand side thereof, operates the sieve B. The bars I) of this sieve runlengthwise, and are crossed by fixed partitions G O. Each of thesepartitions has parallel and in contact with it an upwardly-slidingpartition, D D, to make the partition-wall higher when desired. A chute,F, is attached to the lower end of the sieve for the discharge of wasteor tailings. Apertures G G are formed in the off side wall of the sieve,each aperture being about midway between the top and bottom of the sieveand about midway between the partitions on either side of it. Eachaperture is closed or dimin' ished at will by a valve, 9, set in groovesand sliding upward. These valves are made just wide enough to close theaperture as they move up, so as to leave room for a half-cylinder ofsheet metal, g, which is placed about each aperture inside the sieve,and extends in length from the top of the sieve to about or but slightlybelow the top of the fixed partitions. In working the sieve there isalways a thin bed of ore on the bars, and above this is the-mingled massof ore and waste that is in process of separation. The cleansed andseparated ore sinks to the bed, passes under the half circular guards,and gradually rises within them till discharged through the apertures GG and the chutes g 9 into the compartment N, hereinafter described. Thesliding partitions next below these apertures are made higher than theirfellows, so as to facilitate the accumulation of ore at thesedischarge-holes. A narrow compartment, N, is formed along one side ofthe tank, which receives the ores discharged through the apertures G G,and buckets may be placed in this compartment to catch the oredischarged from the chutes g 9. Standards 0 O are fixed to the sides ofthe tank, provided with slots 0 0 to receive the journals 1) p of theshaft 1?. Attached to this shaft is a long pole or sweep, R, runningback beyond the end of the tank, and there intended to be attached to apower-shaft operated by a crank, so as to give the pole an up and-downjigging motion. This pole is made somewhat flexible, in order that itmay slight- 'ly bend while the sieve is being raised, and

when the downward motionbegins the sudden straightening of the pole willgive a jerk to the sieve and loosen the mass therein, to be better actedupon by the plunge. Braces S S project obliquely across the shaft 1?,and to them are attached eyes s s, from which depend double hooks s s,to catch in the eyes I) b in the upper edges of the sieve B.

Having thus described our invention, what We claim to be new and useful,and desire to secure by Letters Patent, is the following:

1. The combination of a sieve for washing ores,with a series of 10Wfixed partitions cross ing the said sieve at intervals, adjustablepartitions parallel and in contact with said fixed partitions, and meansfor adjusting and hold ing the same in position, in the manner and forthe purposes hereinbefore described.

2. The combination of a sieve-frame having discharge-holes,with valvessliding in grooves, and half-circular guards, in the manner and for thepurposes described herein.

3. In a machine for separating ores the combination of a water-tank witha plungingsieve, a flexible sweep or pole provided with braces, havingsuitable connection wlth the 15 sieve-frame, a rockingshaft, andshaft-stand ards, in the manner and for the purposes described herein.

In testimony whereof we affix our signatures BENJAMIN F. CRUZAN. JOHN J.ROBINSON.

\Vitnesses:

J. MoRRis YOUNG, E. K. SMITH.

